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Get Big Subtraction old version APK for Android
Improve your long subtraction skills, on the go!
Big Subtraction can help you improve your problem solving speed and accuracy for multi digit subtraction problems.
Larger problems are unlocked by solving smaller problems.
You can analyze your problem areas with both numerical and color-coded display of your results.
Stay motivated by setting and beating your fastest times.
Find your best rhythm by turning off/on any combination of verbal, sound, and vibration feedback.
This is a free-to-download, ad-supported app.
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What's New in the Latest Version 1.0.15
Last updated on Sep 19, 2025
(1.0.15)
+ Updated target API to Android 15 (SDK 35): Added support for Predictive Back Gesture.
+ Dialog shown after an error occurs when setting up Verbal Feedback now gives the options to Retry Setup, Keep Off, or Use Sounds.
+ Addressed several deprecations regarding sound and verbal feedback.
+ Bug fixes.
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Big Subtraction
Long Subtract1.0.15 by MATH Domain Development
Sep 19, 2025